Double precision Godot editor crashes

[dragonhunt02]

Using a custom double precision Godot build. https://github.com/V-Sekai/world-godot/releases/tag/latest.v-sekai-editor-167

After adding asset/addons/godotopenxrtools to v-sekai-game project addons folder, editor crashes when loading project with error

*** stack smashing detected ***: terminated

This issue is not present on single precision builds of our editor.

I tried compiling this addon with a generated api dump at double precision

scons platform=android target=template_debug precision=double arch=x86_64 custom_api_file=thirdparty/godot_cpp_gdextension_api/extension_api.json build_profile=thirdparty/godot_cpp_build_profile/build_profile.json
scons platform=android target=template_release precision=double arch=x86_64 custom_api_file=thirdparty/godot_cpp_gdextension_api/extension_api.json build_profile=thirdparty/godot_cpp_build_profile/build_profile.json

however build fails with several warnings/errors

...
Compiling thirdparty/godot-cpp/gen/src/classes/ref_counted.cpp ...
Compiling thirdparty/godot-cpp/gen/src/classes/primitive_mesh.cpp ...
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:5: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                  ^~~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:5: note: insert an explicit cast to silence this issue
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                  ^~~~~~
                  static_cast<float>( )
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:13: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                          ^~~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:13: note: insert an explicit cast to silence this issue
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                          ^~~~~~
                          static_cast<float>( )
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:21: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                                  ^~~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:21: note: insert an explicit cast to silence this issue
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                                  ^~~~~~
                                  static_cast<float>( )
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:29: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                                          ^~~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:169:29: note: insert an explicit cast to silence this issue
                { quat.x, quat.y, quat.z, quat.w }, // orientation
                                          ^~~~~~
                                          static_cast<float>( )
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:170:5: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { pos.x, pos.y, pos.z }, // position
                  ^~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:170:5: note: insert an explicit cast to silence this issue
                { pos.x, pos.y, pos.z }, // position
                  ^~~~~
                  static_cast<float>( )
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:170:12: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { pos.x, pos.y, pos.z }, // position
                         ^~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:170:12: note: insert an explicit cast to silence this issue
                { pos.x, pos.y, pos.z }, // position
                         ^~~~~
                         static_cast<float>( )
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:170:19: error: non-constant-expression cannot be narrowed from type 'godot::real_t' (aka 'double') to 'float' in initializer list [-Wc++11-narrowing]
                { pos.x, pos.y, pos.z }, // position
                                ^~~~~
plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.cpp:170:19: note: insert an explicit cast to silence this issue
                { pos.x, pos.y, pos.z }, // position
                                ^~~~~
                                static_cast<float>( )
7 errors generated.
scons: *** [plugin/src/main/cpp/extensions/openxr_fb_spatial_entity_extension_wrapper.os] Error 1
scons: building terminated because of errors.

See also #259